Document Detail


Equation of state and structural changes in diaminodinitroethylene under compression.
MedLine Citation:
PMID:  15267725     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Structural changes in 1,1-diamino-2,2-dinitroethylene (DADNE, FOX-7) compressed to high pressure in diamond anvil cells were investigated using angle-dispersive x-ray diffraction analysis, Raman spectroscopy, and optical polarizing microscopy. The x-ray results show several changes above 1 GPa. When the x-ray data are indexed according to the ambient-pressure structure, DADNE shows anisotropic compression, with higher compression along the b axis than along the a or c axis. An ambient-temperature isothermal equation of state of DADNE was generated from these data. In addition, the experimentally obtained Raman spectra were matched with vibrational normal modes calculated using quantum chemistry calculations. The shifts in vibrational modes indicate changes in H-wagging vibrations with pressure.
Authors:
Suhithi M Peiris; Chak P Wong; Frank J Zerilli
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  120     ISSN:  0021-9606     ISO Abbreviation:  J Chem Phys     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-07-22     Completed Date:  2006-08-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8060-6     Citation Subset:  -    
Copyright Information:
Copyright 2004 American Institute of Physics
Affiliation:
Research and Technology Department, Naval Surface Warfare Center, Indian Head, Maryland 20640, USA. PeirisSM@ih.navy.mil
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